import base64

ciphertext = "3P7TnK+A5cN/SuHH4zyvo0+PbHsp921hmXI43pQH+g948ErR02zJ6/KXOnxX046I"
bin_data = base64.b64decode(ciphertext)
print(bin_data)
cols = 16  # 每行16个字节
for i in range(0, len(bin_data), cols):
    chunk = bin_data[i : i + cols]
    print(" ".join(f"{b:02x}" for b in chunk))
